<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price">
        ￥{{goods_info.goods_price }}
      </view>
      <!-- 商品信息主体区域 -->
      <view class="goods-info-body">
        <view class="goods-name">
          {{goods_info.goods_name}}
        </view>
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 商品运费 -->
      <view class="yf">
        快递：免运费
      </view>
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <!-- 商品导航组件 -->
    <view class="goods-nav">
      <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick"
        @buttonClick="buttonClick" />
    </view>
  </view>

</template>

<script>
  // 导入vuex的辅助函数
  import {
    mapState,
    mapMutations,
    mapGetters
  } from "vuex"
  export default {
    data() {
      return {
        goods_info: {},
        options: [{
          icon: 'headphones',
          text: '客服'
        }, {
          icon: 'shop',
          text: '店铺',
          info: 0,
          infoBackgroundColor: '#007aff',
          infoColor: "red"
        }, {
          icon: 'cart',
          text: '购物车',
          info: 0
        }],
        buttonGroup: [{
            text: '加入购物车',
            backgroundColor: '#ff0000',
            color: '#fff'
          },
          {
            text: '立即购买',
            backgroundColor: '#ffa200',
            color: '#fff'
          }
        ],
        // ------
      }
    },
    onLoad(options) {
      console.log(options);
      this.getGoodsDetail(options.goods_id)
    },
    methods: {
      ...mapMutations('m_cart', ['addToCart']),
      async getGoodsDetail(goods_id) {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/detail', {
          goods_id
        })
        console.log(res);
        if (res.meta.status !== 200) return uni.$showMsg
        // 利用正则去掉图片的空格 并将图片格式改成兼容的jpg格式
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;"')
          .replace(/webp/g, 'jpg')
        this.goods_info = res.message
        console.log(res.message.goods_state);
      },
      preview(i) {
        uni.previewImage({
          // current为当前预览图片的索引
          current: i,
          // urls为预览图片的数组 选出所有的大图并拼接成一个新数组
          urls: this.goods_info.pics.map(x => x.pics_big),

        })
      },
      onClick(e) {
        if (e.content.text === '购物车') {
          uni.switchTab({
            url: '/pages/cart/cart'
          })
        }
      },
      buttonClick(e) {
        console.log(e);
        if (e.content.text == '加入购物车') {
          // 要添加的商品信息对象
          const goods = {
            goods_id: this.goods_info.goods_id,
            goods_name: this.goods_info.goods_name,
            goods_price: this.goods_info.goods_price,
            goods_count: 1,
            goods_small_logo: this.goods_info.goods_small_logo,
            // 商品选中状态
            goods_state: this.goods_info.goods_state
          }
          this.addToCart(goods)
        }
      },
    },
    computed: {
      ...mapState('m_cart', []),
      ...mapGetters('m_cart', ['total']),
    },
    // 计算属性 动态计算总价数量的变化
    watch: {

      /* total(newVal) {
         let searchResult = this.options.find(x => x.text === '购物车')
         console.log(newVal);
         // console.log(searchResult);
         searchResult.info = newVal
       } */
      total: {
        handler(newVal) {
          let searchResult = this.options.find(x => x.text === '购物车')
          console.log(newVal);
          // console.log(searchResult);
          searchResult.info = newVal
        },
        // 开启深度监听
        immediate: true
      }
    },
  }
</script>

<style lang="scss">
  swiper {
    height: 750rpx;

    image {
      width: 100%;
      height: 100%;
    }
  }

  .goods-info-box {
    padding: 10px;
    padding-right: 0;

    .price {
      color: #c00000;
      font-size: 18px;
      margin: 10px 0;
    }

    .goods-info-body {
      display: flex;
      justify-content: space-between;

      .goods-name {
        font-size: 13px;
        margin-right: 10px;
      }

      .favi {
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        border-left: 1px solid #efefef;
        color: gray;
      }
    }

    .yf {
      font-size: 12px;
      color: gray;
      margin: 10px 0;
    }
  }

  .goods-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
  }

  .goods-detail-container {
    padding-bottom: 50px;

  }
</style>
